Rubbing two dry nonmetals? vigorously can produce static electricity​

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

First to answer will be the brainliest i need the answer asap

Aforce of 6 n acts on a 33 kg object for 9 seconds. what is the objects change in velocity?